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https://github.com/tinygo-org/tinygo.git
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Ron Evans
17302ca762
* initial implementation for Tillitis TKey device * add UART implementation for TKey * add Pin interface implementation for TKey touch sensor * add RNG interface implementation for TKey * add helpful machine package functions to return identifiers such as name and version for TKey * use built-in timer for sleep timing on TKey * modify UART implementation for TKey to implement Serialer interface * implement BLAKE2s ROM function call for TKey device * handle abort by triggering TKey device fault using illegal instruction to halt CPU * simplify TKey implementation by inheriting from existing riscv32 target * return error for trying to configure invalid baudrates on UART * add tkey to builder test * be very specific for features passed to LLVM for specific config in use for TKey * handle feedback items from TKey device code review Signed-off-by: deadprogram <ron@hybridgroup.com>
25 lines
454 B
Go
25 lines
454 B
Go
//go:build tkey && !qemu
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package runtime
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import "device/riscv"
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// ticksToNanoseconds converts ticks (at 18MHz) to 10 µs.
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func ticksToNanoseconds(ticks timeUnit) int64 {
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return int64(ticks) * 10000
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}
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// nanosecondsToTicks converts 10 µs to ticks (at 18MHz).
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func nanosecondsToTicks(ns int64) timeUnit {
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return timeUnit(ns / 10000)
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}
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func exit(code int) {
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abort()
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}
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func abort() {
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// Force illegal instruction to halt CPU
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riscv.Asm("unimp")
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}
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